Logging-engine.



1,259, 173. 'Patented Mar. v12, 1918.

essi" avenants COPY ated .States residing at have invented new and st s 'in Logging-Engines., Ying 1s a specification; elatesgto logging engines t of as 'Willi be hereinafter A"hinted out inthe claims. l ,entiony-i illustrated in the accomfr vviii which 'shoiva plan view l ng the invention, parts 'fni de up of the side beams n the frame and the. en"A 1e cranks of the drive fis mounted on the shaft. ,isugonrraled in boxes 6 .on

t on it 5.. The gear 7 has the cone riction surface. 9 -adapted tor operate if the gglooyel() ifitheA flange of .the drum. vp' ll l tends into. an axial bore :shaftandf'is adapted to communi# D fn a fric ion actuating den 'the outer end of the har 12. The bar 12 is 1"oa and engages a collar ,The collar 13 operates .fgearls'o that when pressure is 'l'the gear is moved to into .engagement with the o .x ces 10Q This is .the common 2n nner ov the drum. A springlt is 40 anged onap'm L5. rEhe. pin is carried by .a la lllo Ad,axially yon the shaft and l lug 16a on the gear AV7. Spring per tuig against the lug'tcnds iseifgad the from the groove surlnu A1.7', .isarra ged on the end of vthe A' h1 `outward movement of 11,1). "e understood -that there pins-ffwith the springs.

geit. sever "Y 'Il viraniana, 4er roiirr-.amifoiaijeoaa .u L tossine-Encina. y'

Specicttonscf Letters @atentay i nty of Multnomah and' in ertafin. improvements in the.

etter show con'structioi-a.

K I, :2il 3 and 3. Itavill be; terdinarily a boiler anden-w tm gears 7 and 8- are also` and 'gear 8; This'is accomplished with Y vparativlysmall gears sothat aeigiipic The gear provided "ivithla cone i8 which operatesfon tielgr-oove'sl1r`aces 19i, `on the Hangs of `the drum.,l .The pin QO'is arranged inthe bore 2l in' the shaft 5 and.

operates thecross har :22. -The cross'- oa'r 22- engages the collar23 and the .coliar 23..is 1 against the gear 8 so that the thrust move'u l mentof the pin 20 is communicated to the gear 8 to move the cone linto` engagement.'

A spring 2% is arranged on the pin 25. h pin 25 extends from a p1at'e26.- locltedfal ally on the shaft and through thev lng The spring (with others' arranged-around?. ,the shaft, not shown) mores thegear to]` disengage 'the cltitch formed :bythe'conefl and groove 19; A nut 28 liniitsnthe antward movement of the gear 8.

A drive shaft 29 is journaled in thehear'.. e

part .off the engine. A'gearV .31 -isf-ine.i on

the shaft' 29 and meshes'thegear .75 thus that the shaft 32 and. its drums are, ahoy-ef n* the shaft 5 and its drum. I

'A gear 3% is fixed von.I the shaft liey gear 36 is also fixed` onthe 'shaft'Zf by a key 37.- The gear 36 meshes a gear 38'; The gearl 38 is mounted cna hollow' shaft! 39 and the shaft 39 is journalcdin.bearings L@carried in posts on the cross piecev gear l is fixed on the shaft 39-and=meshesvwith the gear 8. The gearBetis larger than .the gear 36 and the gear largerthaii the? gear il so that with the gears 7 .and oina'd f approximately the same. size there-i isa ydecided difference in gear .ratio vbetweenthe direct. drive .between the gcar`31 and 4gear :t and the lndirect drive between the gear" frame' with slight clearance'can'belue view of the fact that theseeng" moved into diiicult places this isimpoi It will also be `noted that the clutches leef-1" tween the gears-'Z and 8 can readilyVy setiwith the engine in motion so that an immediate shift may be made while the pulling is going on.

drum 42 is mounted on the shaft 32. It has the fiiction groove 43 adapted to operate on thecone 44 on the gear 34. f The spring 45 is arranged o-n the rod 46. The` rod 46 extends from the plate 47 and through the lug 48 on the druin, vThe spring 53 extend through tliegear 36 and communicate movement from a collar 54 to the collar 52. A cross bar 55 extends through the shaft and is engaged by the thrust pin 56 in the bore 57 in the shaft.

It will readily be .seen that when thrust movement is given to the pin 56 the drum 42 is moved to set the clutch between the drum and gear 34.

A cone 60 is4 arranged on the gear 34 I opposite the cone 44. VT he cone 60 operates in a groove 59 in the drum 58.. The/drum 58 is mounted on the shaft 32.

' A spring 61 is arranged on the pin 62. The pin 62 extends from a plate 68. The spring exerts pressure on the drum to move the friction surfaces of the cone and groove out of engagement. The outward movement is limited by the nut 65on the pin' 62.

A collar 66 -.is mounted on' the shaft against the druni 58. Across pin 67 communicates movement to the collar from a thrust pin 68 in the bore 69 'in the shaft 32'.

In operation the main drum 4 may be driven directly or indirectly as described.l

The drum 42 may be thrown into and out of action through the pin 5G as desired and the drinn 58 thrown in and out by the pin 68.` y

WhatI claim as new is g- 1. In a logging engine, the combination `of a drum; a druin` shaft on which said drum is mounted: direct and indirect drum gears on said drum shaft; clutch mecha-l nisms for locking either of said gears with ysaid drum; a drive shaft; a direct drive ear 0n-said drive shaft' meshing the direct rum gear; a third shaft; and a gear connection through the third shaft and between the drive shaft and the indirect drum gear,

the gear ratio through the gear connection and indirect drum gear being different than the gear ratio between the driving gear ndirectgear on said first drum shaft; clutch and the direct drum gear.

2. In a logging engine, the combination of a first drum; a first drum shaft on which the drum is mounted; a direct and a first mechanisms for locking either of said gears with said drum; a drive shaft; a drive gear meshing the direct first drum gear; a second drum shaft; a second indirect gear fixed 0n said shaft and driven from the drive shaft; a second drum on said second drum shaft; a clutch for locking said drum with 'said second drum shaft; a third indirect gear fixed on said second druin shaft; and a gear connection between said third indirect gear and the first indirect gear, the gear ratio between the drive gear and the direct first drum gear being different than the gear ratio through the indirectgears.

3. In a logging engine, the'combinatio'n lof a first drum; a first drum shaft on which a clutch for locking said drum with sai second drum shaft; a third indirect gear fixed on said second drum shaft; a pair of fourth indirect gears mounted concentric with the drive shaft and forming a gear connection between the third indirect gear land the first indirect gear, the gear ratio through the indirect gears being different than the gear ratio between the drive gear and .the first drum gear.

4. In a logging engine, the combination of a first drum; a first drum shaft on which 10o the drum is mounted; a direct and a firstv indirect gear on said first drum shaft; clutch mechanisms for locking either of said gearsy with said drum; a drive shaft; a drive gear meshing the direct first drum gear; a second drum shaft; a second indirect gear fixed on said shaft and driven from the drive'shaft;

a second drum on said second drum shaft;

a Clutch for locking said drum with said second drum shaft; a third indirect gear fixed on said second drum shaft; a gear connection between said third indirect gear and the first indirect gear, the gear ratio be-l tween the drive gear andthe direct first drum gear being different than the ear ratio through the indirect gears; a,tiird drum on the second drum shaft at the opposit'e" side of the second indirect gear fromthe second drum; and a clutch mechanism for locking said third drum with the second/12 drum shaft. p l

5. In a logging engine, the combination of a first drum; a first drum shaft on which the driimis mounted; a direct and a first indirect-gear on said first drum shaft; clutch mechanisms for'locking either of said gears with said drum; a drive shaft; a drive gear meshing the direct first drum gear.; a second drum shaft;` a second indirect gear fixed on connection between said third indirect geel.' said shaft;v and driven lfrom the drive shaft; and the rst indirect; gear, the gear ratoAbe- 10 a-scond drum on' said second `drum shaft; tween' the drive gearV and the' direct rSt a clutch for locking said drum with' said' drum gear being different than A*the 'gear 5 second drum shaft; thrust; mechanism for ratiothroughhe indirect' gears.

Y `said clutch operating through one of the In testimony whereofl have hereunto set `gears on said shaft; a third indirect; gear, my hand. xed on 'said second drum shaft.; and a' gear HARRY L. TURNFZY- 

